Fig. 7. Expression of Cs-Mesp is under the control of ß-catenin and Cs-macho1. (A-C) Expression of Cs-Mesp at the late gastrula stage. (A) Control embryos and embryos injected with (B) ß-catenin and (C) Cs-macho1 morpholino. (D) Quantification of the amount of Cs-Mesp mRNA in control embryos and experimental embryos developed from eggs injected with ß-catenin and Cs-macho1 morpholino. Quantification was performed by real-time RT-PCR. The relative amounts of mRNA compared with those in control embryos are shown.